In case you haven't noticed, we have a gallery for screen shots you've taken and art you've created. You can find the link to this on the navigation bar at the top of each page (where you can also access your profile, messages, and log out button).
Right now it's kind of empty, but I expect that sometime it will begin to fill up. You can upload anything appropriate, and then a mod or myself will approve it before it is published in the gallery. You may comment on another user's art or screenshots and rate your favorites.
I think the gallery is really neat and convenient, so use it wisely!